The Anti-United Nations Forces arose from resistance to a single unified world government, a proposal in which many of the world's nations wished solidarity against the possibility of invasion by aliens following the revelation of the crashed Alien Space Ship-1 (ASS-1) on South Ataria Island. Backed by several of the world's most powerful countries, the Anti-United Nations Forces have a long history of espionage.

So it was with little surprise the U.N. Government's development of the F203 Dragon II fighter based on OverTechnology from the Alien Space Ship-1 (ASS-1) was followed by the Anti-United Nations development of their own aircraft with OverTechnology.

The Mikolev MiM-31 Karyovin was also a delta wing craft and the A.U.N.'s answer to the F203. Using most of the same materials, the Karyovin was a comparable aircraft and was a step ahead of the conventional aircraft of its time.